Determining the sign of the b-->sgamma amplitude.
The latest Belle and BABAR measurements of the inclusive B -->Xsl+l- branching ratio have smaller errors and lower central values than the previous ones. We point out that these results indicate that the sign of the b-->sgamma amplitude is the same as in the standard model. This unders...
Main Authors: | , , |
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Format: | Journal article |
Language: | English |
Published: |
2005
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Summary: | The latest Belle and BABAR measurements of the inclusive B -->Xsl+l- branching ratio have smaller errors and lower central values than the previous ones. We point out that these results indicate that the sign of the b-->sgamma amplitude is the same as in the standard model. This underscores the importance of B -->Xsl+l- in searches for new physics, and may be relevant for neutralino-dark matter analyses within the minimal supersymmetric standard model. |
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